After a few emails back and forth with Ansgar at BSB firestation, out of the blue came this photo found by another firefighter based at Bersenbruck showing Vicky in service at a training centre. The Bay window VWs are both BSB buses and as BSB only had two orange ones, I suspect that Vicky is the RH one as the mirrors look to be different colours...as they are today!

Vicky and her other Bersenbruck stablemate at the Bad Nenndorf Katastrophenschutz (Disaster Control) Training Centre in the 80's. Note the THW vehicles too.